There are too many current poll results at this point to ignore the impression that the GOP nomination battle in the early states is currently coming down to two people: Donald Trump and Ted Cruz. The one place where Cruz may be in the lead is Iowa, and that’s something of a head scratcher for those who follow the conventional rules of political warfare. The Texas Senator has come out time and time again in opposition to the Renewable Fuel Standard and ethanol subsidies (well… all subsidies to be honest) and that’s generally considered to be the equivalent of...